to my understanding, in Ma a moped does not require registration so long as it is under 50cc and has an automatic transmission and a mex speed lss then 30mph...in such a case my magnum would be disqualified from the start as it has 2 gears and a max speed over 30...right?
With a moped their is no registration of the vehicle's vin number as the def includes any bike with a helper motor, gas or electiric...pedels have nothing to do with it.
As for motorcycle there is no requirement that the engine match the frame...often people swap the engines...the only thing required is that the frame number be the same as on the title.
The only problem I see is that the gsxr motor has 4 gears...but i think it would be hard to detect from the naked eye...and i really dont expect to go more than 30...i just want the added hp and gears for safety issues. I think it is incredibly unsafe to not have the extra power and maneuverability offered in gearing for emergency situations.
I think if done right, the swap would be undetectable to the average naked eye...
"downgrade" ..please elaborate...i understand purists thinking it would be a departure from stock...but adding hop up kits already do this,